net/mlx5e: Properly disable vlan strip on non-UL reps

stable inclusion
from stable-v5.10.140
commit 29accb2d96e69a9ccd5050a19d00831d3546c2b5
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I63FTT

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=29accb2d96e69a9ccd5050a19d00831d3546c2b5

--------------------------------

[ Upstream commit f37044fd ]

When querying mlx5 non-uplink representors capabilities with ethtool
rx-vlan-offload is marked as "off [fixed]". However, it is actually always
enabled because mlx5e_params->vlan_strip_disable is 0 by default when
initializing struct mlx5e_params instance. Fix the issue by explicitly
setting the vlan_strip_disable to 'true' for non-uplink representors.

Fixes: cb67b832 ("net/mlx5e: Introduce SRIOV VF representors")
Signed-off-by: NVlad Buslov <vladbu@nvidia.com>
Reviewed-by: NRoi Dayan <roid@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: NWei Li <liwei391@huawei.com>

drivers/net/ethernet/mellanox/mlx5/core/en_rep.c

@@ -716,6 +716,8 @@ static void mlx5e_build_rep_params(struct net_device *netdev)
 
 	params->num_tc                = 1;
 	params->tunneled_offload_en = false;
+	if (rep->vport != MLX5_VPORT_UPLINK)
+		params->vlan_strip_disable = true;
 
 	mlx5_query_min_inline(mdev, &params->tx_min_inline_mode);